Corner-plaster block.



PATENTED 0013, 1905. M. G. P. BUCKLEY.

CORNER PLASTER BLOCK.

APPLICATION FILED MAY 14, 1904.

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UNITED STATES PATENT orrion- I MICHAEL G. F. BUCKLEY, OF NEIV YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, OF ONE-HALF TO INTERLOCKING FIREPROOF BLOCK COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

CORNER PLASTER BLOCK.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed May 14, 1904. Serial No. 207,919.

To all "1071/0112 it may concern:

Be it known that I, MICHAEL Gr. F. BUCK- LEY, a citizen of the United States, residing in New York city, county and State ofNew York, have invented a new and useful Improvement in Corner Plaster Blocks, of which the following is a description.

This invention relates to plaster blocks for structural pu rposessuch as walls, partitions, &c.-and particularly to corner-blocks to be employed in constructing the angles of walls and partitions.

An object of my invention is to provide a corner plaster block so constructed and'formed or provided with means whereby perfect, tight, and solid angles can be produced in any structure, wall, or partition.

It is another object of my invention toprovide a corner plaster block with means whereby it may interlock and connect with others, so as to produce a neat and perfect angle or corner.

WVith the above objects in view and others, which will appear during the course of this description, my invention consists in the parts, features, and combinations hereinafter described and claimed.

. In the drawings, Figure 1 shows in front elevation a corner plaster block made and formed in accordance with my invention. Fig. 2 shows in perspective two of the plaster blocks linked, interlocked, or joined together to form an angle or corner in accordance with myinvention; and Fig. 3 shows in detail portions of the plaster blocks of Fig. 2 slightly separated in order to clearly portray the manner of joining or connecting the same.

Referring to the drawings, the numeral 1 indicates generally the body of the plaster block.

2 indicates the end extensions or tongues which form the interlocking means between two blocks. tensions 2 is provided with a surface incline 5, extending-from the end vertical wall 6 of said tongue tothe end vertical wall 7 of the block, the inclination of the surface 5 being such as to produce at the vertical wall 7 across the end of the block and also at the face of the block at its end wall 7 and also on the back of the tongue at its outer end an acute angle, which angles are indicated, respectively, by

Each of the end tongues or eX-- the numerals 8, 9, and 10. Furthermore, the inclination of the surface 5 is from the outer end of the tongue 2 toward the end wall? of the block and also from one edge of the tongue to' the oth-erthat is to say, viewing Figs. 1 and 2 and the left end of the block portrayed thereinthe surface 5 is inclined from the end wall of the tongue toward the end wall of the block and toward the bottom of the latter and also from the back wall of the tongue toward the front wall thereof and downwardly toward the bottom of the tongue and of the block, thus producing the three inclined edges 11, 12, and 13, constituting the outline of the inclined surface 5 of the tongue 2. This tongue 2 is formed on the block at the bottom of the latter, and the bottom of the tongue is formed in continuity with the bottom of the block. At the opposite or right-hand end of the block 1 a tongue 2 is formed thereon having all the structural features of the tongue at the opposite end, but is formed on the block at its top edge instead of its bottom edge, and the inclined surface and the angles are exactlythe reverse of like features of the tongue at the left end of the block. In other words, the inclination of the, surface 5 of the right end tongue is from near the top toward. the. bottom of the tongue and from the wall-1 4 ofthe block to the end wall 6 of the tongue and from the face to the back of the tongue, the

angles and edges being reversed at and about the inclination 5 and the wall 14:, as will clearly appear upon inspection of the several figures of the drawings.

In order that the blocks when set one upon the other may fit snugly and properly interlock with each other, they may be formed with a tongue and groove or any other means which will enable the blocks to properly fit and lie upon one another. The surface or outer face of the blocks 1 may be scored, grooved, or otherwise hollowed out, so as to provide a means whereby plaster may be applied and readily and securely held to the blocks. In other words, the surfaces of the blocks may be provided with any suitable means for enabling the plaster to take a firm hold thereon and securely adhere thereto. In my Patent No. 625,869, dated May 30, 1899, I have shown a form or structure of plaster block wherein means are provided for ventilation, lightness, and enabling the plaster to take a lirm hold thereon. In my present invention the block may be constructed in like manner that is to say, may be made hollow for the purposes of ventilation and lightness--and may be provided with apertures or slots for securely holding the mortar or plaster. These features will be obvious to any one skilled in the art and are unnecessary of illustration in connection with my present invention.

From the above description it will be clear that in order to properly construct or form the angles or corners of partitions, walls &c., the blocks should be placed together in 'the manner indicated in Figs. 2 and 3, with the left end bottom tongue of one block cooperating with the right end top tongue of another block, thus causing the two tongues and the oppositely-inclined surfaces thereof to snugly lit and interlock. Thus it will be seen that lateral or endwise movementof the blocks relatively to each other is impossible and that an angle or corner formed of such blocks will be firm, solid, neat, and strong.

It will now be seen that I have provided a corner plaster block which is very useful, provides means for a secure, perfect, and neat angle or corner for walls and partitions, and which affords a means for interlocking which is highly effective.

In the drawings I have shown a plaster block with the end tongues or extensions formed in continuity with opposite edges of the blocks; but it will be clear that such extensions may be'formed on the same edge of the block and that other structural features may be changed or modified within the spirit of my invention and the scope of my claims. Moreover, to those skilled in the art it will be obvious that details of construction and outl" i may be changed and varied without departing from the spirit of my invention, and therefore I do not purpose being limited in my claims to the precise form of parts and features hereinabove described.

tongue extending therefrom at its bottom,

and at its other end a tongue extending therefrom at its top, each of said tongues being provided with a surface having a double inclination.

3. In combination,aseriesof plaster blocks, having at adjacent ends oppositely-disposed tongues or extensions, the adjacent surfaces of said tongues being formed with opposite inclines, thus affording interlocking means to hold the said blocks from lateral displacement.

4. A plaster block having end tongues extending in opposite directions, said tongues being formed in continuity with the respective longitudinal edges of the block, each of said tongues being provided with means enabling it"to interlock with other blocks arranged at an angle thereto.

5. A plaster block having an end tongue formed in continuity with one of its longitudlnal edges and provided with a surface formed so that different portions thereof are inclined in directions at an angle to each other.

6. In combination, a series of interlocking plaster blocks, having at ad acent ends oppositely-disposed interlocking tongues formed in continuity with one of their longitudinal edges and each tongue having a surface formed with a double inclination.

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

ionant ear. BUCKLEY.

\Vitnesses: i

MICHAEL J. KELLY, J. POWER DONELLON. 

